CN211313473U - Durable and reliable concrete crack repairing structure - Google Patents
Durable and reliable concrete crack repairing structure Download PDFInfo
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- CN211313473U CN211313473U CN201922005093.8U CN201922005093U CN211313473U CN 211313473 U CN211313473 U CN 211313473U CN 201922005093 U CN201922005093 U CN 201922005093U CN 211313473 U CN211313473 U CN 211313473U
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Abstract
The utility model discloses a structure is repaired to durable reliable concrete crack, including concrete structure, the concrete structure is interior sunken to have the crack groove, the crack inslot is provided with first waterborne capillary crystalline layer, first waterborne capillary crystalline layer along the surface trend of crack groove is laid, the intussuseption of first waterborne capillary crystalline layer is provided with the crack penetrant, the crack penetrant is silicate paste filler, the packing height of silicate paste filler is less than the degree of depth in crack groove, the surface of silicate paste filler is provided with second waterborne capillary crystalline layer, the width on second waterborne capillary crystalline layer is greater than the opening width in crack groove. In this way, the utility model discloses do not need moist maintenance, the filler is not shrunk and the adhesion is strong, and the durability is excellent, and green can resume the pleasing to the eye of concrete.
Description
Technical Field
The utility model relates to a road surface construction technical field especially relates to a durable reliable concrete crack repair structure.
Background
Concrete belongs to rigid building materials, various cracks are often generated in the hardening process, including drying shrinkage cracks, temperature cracks, structural stress cracks and the like, once the concrete cracks, water, carbon dioxide, harmful ions and the like can invade from the cracks to cause corrosion of reinforcing steel bars, so that the concrete structure is further deteriorated, and therefore, the repairing process of the concrete cracks is particularly important.
In the prior art, three repairing modes aiming at concrete cracks are provided: filling, pouring and surface sealing methods; wherein the filling method is mainly used for the situation that the width of the crack is more than 1.0 mm; the perfusion method mainly aims at the condition that the width of a crack is 0.2-1.0 mm; the surface sealing method is mainly used for the case where the width of the crack is 0.2mm or less. The repair materials used in the above repair methods are classified into two major types, i.e., organic and inorganic, and the organic repair materials include epoxy resin, polyurethane, and the like, but the organic repair materials are incompatible with the inorganic portland cement body and are not resistant to ultraviolet rays, and thus the peeling phenomenon is likely to occur. The inorganic repairing material has the common leakage stoppage king on the market, but the repairing material has higher requirements on wet maintenance, is easy to shrink after hardening and has poorer bonding force with the original old concrete.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a durable reliable concrete crack repair structure, and the filler is not shrunk and the adhesion is strong, and the durability is excellent, green, and the colour difference is little moreover, can resume the pleasing to the eye of concrete.
In order to solve the technical problem, the utility model discloses a technical scheme be: the concrete crack repairing structure comprises a concrete structure, wherein a crack groove is formed in the concrete structure, a first water-based capillary crystalline layer is arranged in the crack groove, the first water-based capillary crystalline layer is laid along the outer surface trend of the crack groove, a crack penetrating agent is filled in one side, away from the surface of the crack groove, of the first water-based capillary crystalline layer in an isolated mode, the crack penetrating agent is a silicate paste filling agent, the filling height of the silicate paste filling agent is smaller than the depth of the crack groove, a second water-based capillary crystalline layer is arranged on the surface of the silicate paste filling agent, and the width of the second water-based capillary crystalline layer is larger than the opening width of the crack groove.
Preferably, the first aqueous permeable crystallization layer has a coating density of 200 to 250ml/m2。
Preferably, the first aqueous layer is coated at a density greater than the second aqueous layer.
The utility model has the advantages that: the utility model provides a durable and reliable concrete crack repairing structure, which generates chemical reaction with calcium hydroxide in concrete to generate hydrated calcium silicate crystal to heal cracks through the permeation of the water-based permeable crystallization agent of the first layer; then, the crack is filled by the drying and hardening type silicate paste filling agent, the cured body is not shrunk, the ultraviolet resistance is strong, harmful substances such as organic solvents are not contained, and the environment is protected and safe; finally, the water-based permeable crystallization agent is matched again for permeable combination, crystallization is generated in the cold joint between the filler and the peripheral concrete, and the cold joint is healed and reinforced on a micro scale.
Drawings
FIG. 1 is a schematic view of a durable and reliable concrete crack repair construction of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 for illustrating internal structural layers;
the parts in the drawings are numbered as follows:
1. a concrete structure; 2. a crack groove; 3. a first aqueous osmo-crystalline layer; 4. a silicate paste filler; 5. a second aqueous crystallized layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b):
as shown in fig. 1 and 2, a durable and reliable concrete crack repair construction includes a concrete structure 1, which is a rigid building material, inevitably generates various cracks during hardening, namely, the crack slot 2 depressed in the concrete structure 1, water, carbon dioxide, harmful ions, etc. may intrude into the concrete from the crack slot 2 in a conventional case, causing corrosion of reinforcing steel bars and deterioration of concrete structure, therefore, the utility model is provided with the first water-based capillary crystalline layer 3 on the outer surface of the crack groove 2, the active chemical substances contained in the water-based capillary crystalline material can permeate into the concrete structure through the water-permeating carrier and permeate into the concrete structure along the crack by 15-20 cm, the calcium hydroxide in the concrete generates chemical reaction to generate hydrated calcium silicate crystals to heal cracks, and the compactness of the concrete base layer is improved.
As shown in FIGS. 1 and 2, in order to secure the osmotic supplementation amount and the healing effect, the coating density of the first aqueous osmotically crystallized layer 3 is preferably set to 200 to 250ml/m2After the first aqueous capillary crystalline layer 3 is coated, the surface is preferably kept clear of water, and then a crack penetrating agent is filled in the side of the first aqueous capillary crystalline layer 3 away from the surface of the crack groove 2, wherein the crack penetrating agent is a silicate paste filler 4. The silicate pasty filling agent 4 is an inorganic dry hardening type filling material with the color close to that of concrete, and can be solidified in the air so as to fill cracks without watering and curing; on the other hand, the material is close to that of cement, so that the material can better contact with the surrounding concreteThe materials are integrated and do not age; meanwhile, the ultraviolet-resistant material is an inorganic material, so that the ultraviolet-resistant material is good in ultraviolet resistance, does not contain harmful substances such as organic solvents and the like, and is safer and more environment-friendly. In addition, the silicate paste filling agent 4 contains silicon ash and calcium powder, wherein the silicon ash is gray and has darker color, the calcium powder is white and has lighter color, and the final comprehensive color matching property is adjusted by the relative proportion of the two additive amounts, so that the silicate paste filling agent and the concrete near the crack have the closest color and are fused into a whole to restore the beauty.
As shown in fig. 1 and 2, in order to ensure the structural smoothness and the aesthetic appearance of the final repair, the filling height of the silicate paste filler is smaller than the depth of the crack groove 2, a second aqueous permeable crystallization layer 5 is provided on the surface of the silicate paste filler 4, further penetration is possible by applying an aqueous permeable crystallization agent again, and the use of the aqueous permeable crystallization agent in combination with the silicate paste filler promotes the internal healing of the crack, seals the surface of the crack, and does not affect the aesthetic appearance of the concrete. Preferably, the width of the second aqueous capillary crystalline layer 5 is greater than the width of the opening of the crack slot 2, and the aqueous capillary crystalline agent produces crystallization in the cold crack between the filler and the surrounding concrete, healing and reinforcing the cold crack on a micro-scale. In addition, since the specific function of the first aqueous crystallized layer 3 is different from that of the second aqueous crystallized layer 5, the coating density of the first aqueous crystallized layer 3 is greater than that of the second aqueous crystallized layer 5, balanced.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (3)
1. A durable and reliable concrete crack repairing structure is characterized in that: the concrete structure comprises a concrete structure (1), a crack groove (2) is sunken in the concrete structure (1), a first water-based permeable crystallization layer (3) is arranged in the crack groove (2), the first water-based permeable crystallization layer (3) is laid along the trend of the outer surface of the crack groove (2), a crack penetrating agent is filled in one side, deviating from the surface of the crack groove (2), of the first water-based permeable crystallization layer (3) in an inward-separated mode, the crack penetrating agent is a silicate paste filling agent (4), the filling height of the silicate paste filling agent (4) is smaller than the depth of the crack groove (2), a second water-based permeable crystallization layer (5) is arranged on the surface of the silicate paste filling agent (4), and the width of the second water-based permeable crystallization layer (5) is larger than the opening width of the crack groove (2).
2. A durable and reliable concrete crack repair construction as set forth in claim 1, wherein: the coating density of the first water-based permeable crystallization layer (3) is 200-250 ml/m2。
3. A durable and reliable concrete crack repair construction as set forth in claim 2, wherein: the first aqueous layer (3) is coated at a density greater than the second aqueous layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005093.8U CN211313473U (en) | 2019-11-19 | 2019-11-19 | Durable and reliable concrete crack repairing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005093.8U CN211313473U (en) | 2019-11-19 | 2019-11-19 | Durable and reliable concrete crack repairing structure |
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| Publication Number | Publication Date |
|---|---|
| CN211313473U true CN211313473U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922005093.8U Active CN211313473U (en) | 2019-11-19 | 2019-11-19 | Durable and reliable concrete crack repairing structure |
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| CN (1) | CN211313473U (en) |
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- 2019-11-19 CN CN201922005093.8U patent/CN211313473U/en active Active
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